Table of Contents
- 1 What is the function of the outer covering of a plant?
- 2 What is outer layer of leaf called?
- 3 What is the outer layer of plant cell called answer?
- 4 What is the covering of a leaf called?
- 5 What is the function of cuticle in a leaf?
- 6 What is the function of the epidermis and cuticle layers in a leaf?
What is the function of the outer covering of a plant?
epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.
What is outer layer of leaf called?
Just like human skin, the leaves of plants have an outer layer called the epidermis. In plants the epidermis is made up of a single layer of cells. If we cut across a leaf and zoom in, we can see the area between the upper and lower epidermis.
What are the functions of each layer of the leaf?
Structure of leaves
| Adaption | Purpose |
|---|---|
| Thin cuticle made of wax | To protect the leaf from infection and prevent water loss without blocking out light |
| Palisade cell layer at top of leaf | To absorb more light and increase the rate of photosynthesis |
| Spongy layer | Air spaces allow carbon dioxide to diffuse through the leaf |
What is the function of palisade layer?
The palisade mesophyll layer of the leaf is adapted to absorb light efficiently. The cells: are packed with many chloroplasts. are column-shaped and arranged closely together.
What is the outer layer of plant cell called answer?
cell wall
The outermost layer of a plant cell is the cell wall.
What is the covering of a leaf called?
cuticle
A waxy layer known as the cuticle covers the leaves of all plant species. The cuticle reduces the rate of water loss from the leaf surface.
What is the function of the cuticle in a leaf?
Plant cuticle is the outermost layer of plants, which covers leaves, fruits, flowers, and non-woody stems of higher plants. It protects plants against drought, extreme temperatures, UV radiation, chemical attack, mechanical injuries, and pathogen/pest infection.
Where is the cuticle on a leaf?
The cuticle is located outside the epidermis and protects against water loss; trichomes discourage predation. The mesophyll is found between the upper and lower epidermis; it aids in gas exchange and photosynthesis via chloroplasts.
What is the function of cuticle in a leaf?
In some higher plants, the cuticle is a water-impervious protective layer covering the epidermal cells of leaves and other parts and limiting water loss. It consists of cutin, a waxy, water-repellent substance allied to suberin, which is found in the cell walls of corky tissue.
What is the function of the epidermis and cuticle layers in a leaf?
The cuticle and upper epidermis provide protection for the plant. Below that is the palisade layer, which is the location of photosynthesis within the leaf. Below the palisade layer is the spongy layer, which contains cells that are more spread out, allowing for air pockets.